What symbol is used to identify the standard error of M?

A distribution of scores has µ = 40, σ = 27, and is positively skewed. Consider the sampling distribution of the mean for samples of n = 81. a) Explain what a sampling distribution of the means (SDOM) is or how it is created. b) Then list for this sampling distribution the values for the mean and standard error of the mean, and name the shape. Mean = SE of Mean = Shape of Distribution =

An aquarium of fish has 15 blue fish, 10 red fish, and 5 green fish. What is the probability of randomly selecting a green fish?

For a particular population, a sample of n = 9 scores has a standard error of 8.  For the same population, a sample of n = 16 scores would have a standard error of ____.

A distribution of scores has µ = 40, σ = 27, and is positively skewed. Consider the sampling distribution of the mean for samples of n = 81. a) Explain what a sampling distribution of the means (SDOM) is or how it is created. b) Then list for this sampling distribution the values for the mean and standard error of the mean, and name the shape. Mean = SE of Mean = Shape of Distribution =

A normal distribution has a mean of µ = 40 with σ = 10.  What proportion of the scores in this distribution are smaller than X = 35?

A population of n = 4 scores has a standard error of 10 points.  For the same population, what is the standard error for a sample of n = 16 scores?

Which of the following is directly addressed by the null hypothesis?

A population of n = 4 scores has a standard error of 10 points.  For the same population, what is the standard error for a sample of n = 16 scores?

What is the probability of randomly selecting a student with a test score less than 85 knowing that µ=80 and σ=15?